LI
Product
libexpat
by libexpat project · last CVE Aug 20, 2026
65
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 10High 24Medium 22Low 2
Watch

Add libexpat to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-32778
5.5
0%
Mar 16
libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition
Affected: before 2.7.5
CVE-2026-32777
5.5
0%
Mar 16
libexpat before 2.7.5 allows an infinite loop while parsing DTD content
Affected: before 2.7.5
CVE-2026-32776
5.5
0%
Mar 16
libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content
Affected: before 2.7.5
CVE-2025-66382
5.5
0%
Nov 28
In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time
Affected: through 2.7.5
CVE-2023-52426
5.5
0%
Feb 4
libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time
Affected: through 2.5.0
CVE-2026-56131
4.9
0%
Jun 19
libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation
Affected: before 2.8.2
CVE-2026-41080
2.9
0%
Apr 16
libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document
Affected: before 2.8.0
CVE-2026-24515
2.5
0%
Jan 23
In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data
Affected: before 2.7.4
CVE-2015-1283
–
18%
Jul 23
Multiple integer overflows in the XML_GetBuffer function in Expat through 2.1.0, as used in Google Chrome before 44.0.2403.89 and other products, allow remote attackers to cause a…
Affected: through 2.1.0
CVE-2013-0340
–
19%
Jan 21
expat before version 2.4.0 does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to…
Affected: before 2.4.0
CVE-2012-1148
–
3%
Jul 3
Memory leak in the poolGrow function in expat/lib/xmlparse.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (memory consumption) via a large…
Affected: through 2.0.1; 1.95.1; 1.95.2; 1.95.4; 1.95.5; 1.95.6; +3 more
CVE-2012-1147
–
3%
Jul 3
readfilemap.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (file descriptor consumption) via a large number of crafted XML files
Affected: through 2.0.1; 1.95.1; 1.95.2; 1.95.4; 1.95.5; 1.95.6; +3 more
CVE-2012-0876
–
6%
Jul 3
The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent…
Affected: before 2.1.0
CVE-2009-3560
–
24%
Dec 4
The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service…
Affected: 2.0.1
CVE-2009-3720
–
28%
Nov 3
The updatePosition function in lib/xmltok_impl.c in libexpat in Expat 2.0.1, as used in Python, PyXML, w3c-libwww, and other software, allows context-dependent attackers to cause…
Affected: 2.0.1
Page 2 of 2 · 65 total